dd672c38b1
Regular topology mapping does not care about deduplication of relations. And this is correct for a lot of the case where we expect creating difference of this relations in next operations. But this is not the case for users, since this should be actually trivial info. Due to this reason, construct full topology map and count number of unique connections. Performance side: difference linear check and hash set for different sizes of connections set. Pull Request: https://projects.blender.org/blender/blender/pulls/118848